Search for dissertations about: "Rajeev Ahuja"
Showing result 16 - 20 of 38 swedish dissertations containing the words Rajeev Ahuja.
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16. Time-Resolved Optical Properties of Colloidal CdSe-CdS/ZnS Core-Multishell Quantum Dots in Bioimaging
Abstract : Semiconductor quantum dots (QDs) have attracted great attention as a novel fluorescent material in the last twenty years. Their superior optical properties such as high brightness and photostability, broad absorption spectrum, narrow and size-tunable emission spectrum, enable them great application in bioimaging. READ MORE
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17. Materials Design from ab initio Calculations
Abstract : This thesis presents a theoretical study of bulk materials using ab initio methods based on the density functional theory (DFT).Crystallographic structural phase transformations and phase stability for 5f-dioxides, ABO3 perovskites, and ABO4 compounds have been extensively studied. READ MORE
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18. Electron and Spin Transport in Graphene-Based Nanodevices
Abstract : This thesis is devoted to the multi-scale modeling of electron and spin transport in graphene-based nanodevices. Several devices with fascinating structures and attractive properties have been designed by means of state-of-the-art computational methods, which include ab-initio molecular dynamics (MD) simulations for the geometry, density functional theory (DFT) for the electronic structure, and non-equilibrium Green’s functions (NEGF) for carriers transport properties. READ MORE
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19. Theoretical Investigations of Compressed Materials
Abstract : The use of high pressure as a tool to design new materials as well as to investigatematerials properties has become increasingly important during last one decade. The maingoal of the present thesis is to enhance the significance of the high pressure method as aquantitative tool in solid state investigations. READ MORE
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20. Computational Studies of Electron Transport in Nanoscale Devices
Abstract : In this thesis, a combination of density functional theory (DFT) based calculations and nonequilibrium Green’s functions are employed to investigate electron transport in molecular switches, molecular cords and nanoscale devices. Molecular electronic devices have been proposed as an approach to complement today’s silicon based electronic devices. READ MORE
